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M&S

3 Pack Heatgen™ Maximum Warmth Thermal Socks

£16

Colour

Customers say:

Fits true to size()
Size

Free standard delivery over £60

Product code: T104466

About this style

Made for maximum warmth, these thermal socks feature innovative Heatgen™ technology that helps generate and retain heat during colder weather. The material includes added stretch for superb comfort, while the practical three-pack ensures you're well-stocked for the season. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

Maximum warmth for keeping cosy in colder climates.

Details & care

Style

Product Style: Thermal socks

Features

Heatgen™ technology

lightweight and supersoft, designed to keep you warm when the weather gets chilly

Composition

52% acrylic, 35% polypropylene, 6% polyamide, 6% polyester and 1% elastane

Care

Wash at 40°C

Do not bleach

Tumble dry medium temperature

Do not iron

Do not dry clean

Delivery, collection & returns

Christmas delivery and collection last-order dates

Standard Delivery

Order by Saturday 20th of December

Nominated Day Delivery

Order by Tuesday 23rd of December

Store Collection

Order by Tuesday 23rd of December

Delivery

Standard

UK Standard Delivery is available for £3.99 or free on orders over £60 (excluding furniture).

Nominated Day

UK Next Day Delivery and UK Nominated Day Delivery (excluding Northern Ireland) are available for £5.99 (excluding furniture)

Collection

Collect from store

Store collection is free on all fashion, home and beauty orders.

Returns

UK returns

Free

Exclusions apply

Full delivery and collection informationOur returns policy

Reviews (497)

4.5

62% Recommended this product

Mentions
17 December 2025WimbledonWoman
Verified Purchase

Warm soft and comfortable, true to size as well

Yes, I recommend this

Dad is prone to the cold so these are definitely making a difference. Swapped out all the other socks for the winter!❄️

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

16 December 2025Shopalotta4
Verified Purchase

Warm and cosy

Yes, I recommend this

Lovely thick, soft socks but very sturdy so great for going out walking in the winter keeping your feet warm and cosy

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

16 December 2025Bonhomie
Verified Purchase

Nice and cosy, great for winter 🥶

Yes, I recommend this

Bought for my daughter to wear with her high boots.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

15 December 2025SarahN2024
Verified Purchase

Great Quality

Yes, I recommend this

warm and very soft one, good to wear in winter day. Will buy again

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

13 December 2025Rosie grady
Verified Purchase

My son was impressed with those thermal socks

Yes, I recommend this

I bought these thermal socks for my son which he was very pleased keeping his feet warm

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

12 December 2025RugbyMark
Verified Purchase

Really warm. Will be too thick for some shoes.

Yes, I recommend this

Really warm. Will be too thick for some shoes, so not entirely practical.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

11 December 2025Rosemary j
Verified Purchase

Great quality They are lovely socks

Yes, I recommend this

Their Nate lovely socks and can be tumbled dried ! I think that the person Who I have brought them for wili. like them as much as I do

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

09 December 2025rainbowland
Verified Purchase

Good socks

Yes, I recommend this

Husband like these keeps his feet warm when fishing

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

08 December 2025Angel3030
Verified Purchase

Hubby pleased

Yes, I recommend this

My husband is very pleased with these socks. He says they’re warm & comfortable.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

08 December 2025R0bK
Verified Purchase

Warm & Cosy for the winter

Yes, I recommend this

Warm & Cosy for the winter, I wear them over cotton socks with my thermal underwear.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

07 December 2025AlisR
Verified Purchase

Great Quality and Wear Well

Bought as a gift but know from previous experience that these will be well received. They are better quality and wear better than similar socks of a different brand

Helpful?

05 December 2025tazzigirl
Verified Purchase

Good fit and great quality

Yes, I recommend this

Lovely to see larger sizes in socks. Size 13 is normally a challenge, these are excellent and the thermal quality is good though not up to that of the Heat socks. Wash well

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

05 December 2025Collie girl 1
Verified Purchase

Super socks

Yes, I recommend this

Bought as a gift look good quality and also look warm enough for winter walks

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

02 December 2025Miss2016
Verified Purchase

Winterblue

Yes, I recommend this

These socks are for a Christmas present. They look and feel warm, so I am sure the recipient will be pleased.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

02 December 2025KPR
Verified Purchase

Nice Socks

No, I don't recommend this

Unfortunately my husband couldn’t tell any difference with these or his other work socks

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

30 November 2025Soooks
Verified Purchase

No cold feet now.

No cold feet now sitting in my lounge, can't feel the draught the chimney causes!

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

29 November 2025GH34
Verified Purchase

Bed socks disappointment

No, I don't recommend this

Lovely and warm, but they grip far too tightly around the tops, so I'm unable to wear them.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

28 November 2025Norloch
Verified Purchase

Poor Quality

No, I don't recommend this

Poor quality and not what you’d expect from M and S. Far too big for size 9 foot.

Reviewer Ratings

How did it fit?

Very large

Helpful?

Reviewer Ratings

How did it fit?

Very large

26 November 2025gnome38
Verified Purchase

Perfect for husband who really feels the cold.

Yes, I recommend this

Bought for my husband who has Altzeimers and feels the cold. He loves them and they fit really well.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

21 November 2025excustomer45
Verified Purchase

Poor

Quality of this range of socks has gone downhill over the last 5 years and the price still goes up. Will be my last purchase of socks from M&S. All frayed ends inside every sock

Reviewer Ratings

How did it fit?

Very large

Helpful?

Reviewer Ratings

How did it fit?

Very large

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